linux-kernel - Re: [PATCH 2/2] arm64: dts: amlogic: C3: Add RTC controller node

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Message-ID: <4a78f570-62fd-4779-aba2-1c9c558989f2@linaro.org>
Date: Tue, 22 Jul 2025 12:05:54 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: xianwei.zhao@...ogic.com, Yiting Deng <yiting.deng@...ogic.com>,
 Alexandre Belloni <alexandre.belloni@...tlin.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Kevin Hilman <khilman@...libre.com>,
 Jerome Brunet <jbrunet@...libre.com>,
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-amlogic@...ts.infradead.org, linux-rtc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] arm64: dts: amlogic: C3: Add RTC controller node

On 17/07/2025 11:38, Xianwei Zhao via B4 Relay wrote:
> From: Xianwei Zhao <xianwei.zhao@...ogic.com>
> 
> Add the RTC controller node for C3 SoC family.
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
> ---
>   arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi | 16 ++++++++++++++++
>   1 file changed, 16 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
> index cb9ea3ca6ee0..b81bffac7732 100644
> --- a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
> @@ -53,6 +53,13 @@ xtal: xtal-clk {
>   		#clock-cells = <0>;
>   	};
>   
> +	xtal_32k: xtal-clk-32k {
> +		compatible = "fixed-clock";
> +		clock-frequency = <32768>;
> +		clock-output-names = "xtal_32k";
> +		#clock-cells = <0>;
> +	};
> +
>   	sm: secure-monitor {
>   		compatible = "amlogic,meson-gxbb-sm";
>   
> @@ -967,6 +974,15 @@ nand: nand-controller@...00 {
>   				clock-names = "core", "device";
>   				status = "disabled";
>   			};
> +
> +			rtc@...00 {
> +				compatible = "amlogic,c3-rtc",
> +					     "amlogic,a5-rtc";
> +				reg = <0x0 0x9a000 0x0 0x38>;
> +				interrupts = <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>;
> +				clocks = <&xtal_32k>, <&clkc_periphs CLKID_SYS_RTC>;
> +				clock-names = "osc", "sys";
> +			};
>   		};
>   
>   		ethmac: ethernet@...00000 {
> 

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>